how to specify wipe path from command line?

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I intend to use the following command to wipe free disk space:
bleachbit --clean system.free_disk_space

How can I tell it where to write the file? I want to wipe free disk space on another partition (e.g. /run/media/Fred/someOtherPartition)

In the latest version (BleachBit 1.8) from the command line you can wipe only the pre-selected paths, which you set either in the GUI or by editing ~/.config/bleachbit/bleachbit.ini .

This is a good idea, though, and feel free to file a wish ticket https://bugs.launchpad.net/bleachbit/

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Andrew, lead developer

okay, posted report:
https://bugs.launchpad.net/bleachbit/+bug/1647445